Sucker-rod protector



Feb. 24, 1925. 1,527,713

F. M. STOUT SUCKER ROD PROTECTOR Filed June 4, 1924 @Hmuavt ing of theentire casing, for repair.

Patented Feb.24, 1925.

PATENT OFFICE.

FRANK M. srou'r, OFTULSA, OKLAHOMA.

suoxnn-non rno'rnc'ron.

Application filed tune 4,

To all whom it may concern:

Be. it known that I, FRANK M. STOUT, a

citizen of the United States, residing at- Tulsa, in the county of Tulsa and State of 1924. Ser1a1No. 717,904.

formed of two semi-cylindrical sections 10 and 11 having a longitudinal central bore for reception over'a sucker rod 12.

The ends of each section are reduced and Oklahoma, have invented certain new and tapered so that when the two sections are useful Improvements in Sucker-Rod Protectors, of which the following is a specification.

My invention relates to well drillin and pumping apparatus, and has for its objects the provision of an efficient means for rotecting a sucker rod within a well casing, the provision of a means for preventing dislodgement of the rot-ecting means relative to the rod, and t e provision of a novel means of securing the protecting means relative to the rod.

With-these general objects in view, and such others as will be apparent from the description, my invention resides in the novel construction, combination and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, of which:

Figure 1 is an elevation of a sucker rod equipped withthe protector,

Figure 2 is an elevation of a portion of a .rodwith a half section of the protector disposed thereon,

Figure 3 is a horizontalsection on the line 3-3 of Figure 2.

It has been found that in the drilling of deep wells, the casing when positioned, will very often be somewhat crooked. Due to this, the sucker rods employed will wear against the casing at various points, necessitating frequent replacement, and often pillttempts have been made to overcome this difficulty by roviding wooden jackets on the sucker red at the points where wear occurs, the jackets being made in two sections and clamped around the rod by means of ferrules over their ends. The wood becomes oil soaked and acts as a bearing. However, it is impossible to keep the jackets in position on the rod, as they soon slip and are therefore useless.

I have overcome this difficulty by providing the rod with one or more collars, which engage the wooden jackets in such manner as to absolutely hold the jackets in the desired position. Additional holding means are also provided.

The preferred embodiment of the invention is shown as comprising a wooden jacket applied atopposite sides of the rod 12, the

ends :will register and the sections may beare adapted-to be forced down over the ends of the two sections in a tight wedging engagement. v

The outer faces of the two sections are provided with a plurality of deep longiltudmal grooves 15 throughout their length,

for passage of oil therethrough.

The sucker rod 12 is provided with a plurality of collars, preferably four in number, as at 16, 17, 18 and 19, which are molded thereon, or secured in any suitable manner, as by sold-er or welding. These collars are disposed at spaced intervals, with two, 16 and 19, disposed-adjacent the ends of the sectlons ofthe jacket, and two, 17 and 18, internally thereof. The internal collars 17 and 18 are received in annular grooves provided therefor in the opposed faces of the jacket sections.

It will thus be seen that with the sections 10 and 11 engaged over the rod and collars and the ferrules 13 and 14 disposed thereover, the entire jacket will be held against longitudinal movement on the rod, and displacement absolutely prevented. The ferrules engage over the collars as well as the end sections, wedging the end sections tightly up against the abutting collars.

One of the ribs formed between the grooves 15 of the jacket sections, is provided with a transverse bore 20 through which is passed a wire 21, extended over the adjacent ferrule and collar and around the-sucker rod, and fastened upon itself as shown. By this construction, the jacket is further supported in its position on the rod, as the ferrules are thereby held in place.

The present invention contemplates that the rods may be formed with the collars thereon, when manufactured, but in practice, it is preferred that the collars be welded or molded to the rod in the field, as it is not possible always to foretell the points at which wear W111 occur.

In operation, when wear is noted upon a sucker rod, the collars are formed thereon from some light metal, at the points desired,

cylindrical sections having reduced tapered and the jacket applied. By reason of the structure set forth, the jacket will be maintained in osition at all times.

While have illustrated and described certain details and materials entering into the construction and operation of the invention, I desire it to be understood that the 1nvention is not limited thereby, but that any desired changes and modifications'may' be made in the details thereof as will fall within the scope of the-invention as claimed.

I claim 1. A rod protector for oil wells comprisin a wooden jacket formed of two semicy indrical sections having reduced ends, ta ered ferrules adapted to be engaged over saidends for clamping said sections around a rod, said sections belng provided with internal recesses, and collars on said rod adapted to seat in said recesses for holding said japiket against longitudinal movement on the ro 7 2. A rod protector for oil wells comprising a wooden jacket formed of two semiends, tapered ferrules adapted to be engaged over said ends for clamping said sections around a rod, and projections on said rod adapted to engage said sections internally and externally for preventing longitudinal movement of the jacket on the rod.

3. A rod protector for oil wells comprisin a wooden acket formed of two semicy indrical sectlons having tapered reduced ends, tapered ferrules adapted to be engaged over said ends for clamping said sections around a rod, and means on said rod for engaging the ends of said sections and theinterior of said sections for preventing longitudinal movement of the'jacket on the rod.

4. A rod protector for oil wells comprising a jacket adapted to surround a section of the rod, and cooperative means on the adjacent portions of the interior of said "acket and the exterior of the rod to maintain the jacket against longitudinal movement on said rod.

In testimony whereof I aflix my signature.

FRANK M. S-TOUT. 

